4. Chemistry: electrical current producing apparatus, product, and
  5. Means externally releasing internal gas pressure from closed...
  6. Elastic, resilient or spring biasing valve means

Andrew S. O. Ng

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Releasable pressure vents

Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Elastic – resilient or spring biasing valve means
Patent

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Universal plug for replacement rechargeable battery for telephon

Electrical connectors – Convertible by internal change to selectively cooperate with... – Including repositionable contact
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Profile ID: LFUS-PAI-P-976833

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